Amphidisc definitions

Amphidisc

• (n.) A peculiar small siliceous spicule having a denticulated wheel at each end; -- found in freshwater sponges.
Found on http://thinkexist.com/dictionary/meaning/amphidisc/

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Amphidisc

Am'phi·disc noun [ Greek 'amfi` + di`skos a round plate.] (Zoology) A peculiar small siliceous spicule having a denticulated wheel at each end; -- found in freshwater sponges.
Found on http://www.encyclo.co.uk/webster/A/73

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